Cruise, controlled.
Technology that makes the
dream possible
Making dreams
take flight
and Landing (eVTOL)
Joby Aircraft
Fast, Flexible Travel
Taking off and landing vertically allows us to get you closer to your destination than ever before
Quiet by design
We perfected our acoustic footprint to have an aircraft as quiet as the wind in the trees for city-friendly travel.
Zero operating emissions
All-electric and energy-efficient, making clean, everyday flight a reality.
Six electric motors
Six propellers, four battery packs and a triple-redundant flight computer to deliver safety in the skies.
In the vertical position, our propellers generate upward thrust for takeoff and landing, enabling stable, helicopter-like flight in tight urban spaces.
In the horizontal position, our propellers allow for efficient and fast cruising during wingborne flight.
Safely soaring skyward
Almost a decade of certification work with FAA.
Our aircraft is in the final stage of the same certification process that underpins today's commercial aviation system.
Thousands of testing hours for each part.
We rigorously test every aspect of our aircraft's hardware and software, from the smallest piece of carbon fiber to fully integrated system.
Redundancy built-in.
We designed our aircraft's powertrain, flight controls, and electronics to be fully redundant, with six dual-wound propulsion motors, four battery backs, a triple redundant flight control computer and dual critical actuation systems.
Intuitive piloting with integrated controls.
We've revolutionized pilot controls, to make them simple and safe, allowing our fully-qualified pilots to focus on what matters most.
Designed to be quiet
Propeller design
Blade tip geometry was designed to reduce vortex-interaction noise in transition
Sound waves
Low-intensity sound waves in cruise lets our aircraft fade into daily noise
We've spent more than a decade ensuring our aircraft is able to blend into the background as it moves around our cities.
Making Dreams Take Flight
We design, engineer and manufacture our critical aircraft components in-house. That means everything you see (and don't see) has been quality ensured by our own team.
Our engineering process is built to ensure maximum precision and quality control, perfected by Toyota’s know-how and experts involved in every step.
Everything you see (and don't see) has been quality ensured by our own (obsessive) team.
We follow a fast, cyclical process of designing, building, and testing entirely in-house — allowing us to move quickly through each phase, iterate rapidly, and deliver breakthrough technology at speed.
We’re pushing the boundaries of what’s possible — delivering best-in-the-world performance through ultra-lightweight, highly optimized design. From airframes and actuators to powertrains and electronics, every component is engineered in-house with a relentless focus.
We conduct equipment-level testing at speed, with the capability to support the full spectrum of development and certification testing. Our extensive network of state-of-the-art labs enables rapid iteration, deep validation, and unmatched test coverage across systems.
Our manufacturing process is designed for scalability without compromising precision or quality — made possible through close collaboration with Toyota’s world-renowned engineering and production systems.
Designed, engineered, built and tested in America.
Battery technology is lightweight and modular for safety. Each of the four packs isolates faults internally, and system-wide redundancy keeps the aircraft airborne even during a component-level failure.
Learn more
Airframe combines titanium, magnesium, and carbon fiber for unmatched strength-to-weight. Robotic 3D printing enables complex parts with high precision and efficiency.
Learn more
Our full-tilt rotor system blends VTOL capability with high-speed, fixed-wing cruise. It lifts off from any vertiport, no runway required, while delivering best-in-class lift-to-drag efficiency for exceptional range.
Battery technology is lightweight and modular for safety. Each of the four packs isolates faults internally, and system-wide redundancy keeps the aircraft airborne even during a component-level failure.
Battery technology is lightweight and modular for safety. Each of the four packs isolates faults internally, and system-wide redundancy keeps the aircraft airborne even during a component-level failure.
Battery technology is lightweight and modular for safety. Each of the four packs isolates faults internally, and system-wide redundancy keeps the aircraft airborne even during a component-level failure.
Battery technology is lightweight and modular for safety. Each of the four packs isolates faults internally, and system-wide redundancy keeps the aircraft airborne even during a component-level failure.
Battery technology is lightweight and modular for safety. Each of the four packs isolates faults internally, and system-wide redundancy keeps the aircraft airborne even during a component-level failure.
Nothing but clear
skies ahead.
Zero
operating emissions during flight, improving air quality in urban communities.
90%
fewer emissions than a helicopter
40%
fewer emissions than the average car
Based on a trip distance of 37 miles in the Los Angeles area. Average car is defined as a gas-powered combustion vehicle. Emissions account for both WTW and TTW (upstream and operating).
84%
of electricity powering our primary facilities came from renewable sources in 2024
Joby S4 Specifications
A technical overview of the Joby S4, detailing our aircraft core specifications, performance capabilities, propulsion architecture, and overall system design.
Summary
Performance
Dimensions
Fleet
with 5-blade rotors
65dBA at Landing, from 330ft (100m)
